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Preparation method of polyester cotton for cranial nerve microvascular decompression, polyester cotton and application

A technology of polyester cotton and cranial nerves, applied in the field of microvascular decompression of cranial nerves, can solve the problems of high hardness of gaskets, stimulation of cranial nerves, and difficulty in shaping, so as to achieve firm embedding, reliable contact, and not easy to loosen or move bit effect

Pending Publication Date: 2022-03-08
上海水缘居生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect that the Teflon (polytetrafluoroethylene) gasket exists is that the Teflon (polytetrafluoroethylene) gasket is placed between the microvascular and the cranial nerve, because the gap between the gasket and the cranial nerve and the microvascular The contact specific surface area is small, on the one hand, it is loose and displaced due to vibration and other reasons; The spacer itself can irritate the cranial nerves, causing new ailments
Teflon (polytetrafluoroethylene) cotton is composed of Teflon (polytetrafluoroethylene) fibers. Teflon (polytetrafluoroethylene) fibers themselves are relatively elastic and not easy to bend. It is not easy to shape during clinical use. It is not conducive to making arbitrary shapes to fill the unspecified shape space between cranial nerves and microvessels. After a long time, the fibers in Teflon (polytetrafluoroethylene) cotton itself will stimulate cranial nerves and cause new ailments

Method used

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  • Preparation method of polyester cotton for cranial nerve microvascular decompression, polyester cotton and application
  • Preparation method of polyester cotton for cranial nerve microvascular decompression, polyester cotton and application
  • Preparation method of polyester cotton for cranial nerve microvascular decompression, polyester cotton and application

Examples

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Embodiment 1

[0047] Embodiment 1 discloses a preparation method of polyester cotton for cranial nerve microvascular decompression, comprising the following steps:

[0048](a) crimping the polyester long fiber at a fixed cycle, and heating and setting it between 160°C and 190°C for a setting time of 30s-60s; specifically, the fineness of the polyester long fiber is d=100D to 200D , the number of filaments f=(0.2~2)*d of the polyester filament, such as polyester filament can choose 100D / 36f, 100D / 72f, 100D / 144f, 150D / 36f, 150D / 72f, 150D / 144f, 150D / 280f, 200D / 36f, 200D / 72f, 200D / 144f, 200D / 280f, 200D / 350f, etc., the polyester filament can be selected as one of the bright polyester fiber, semi-dull polyester fiber, and full-dull polyester fiber. "Curling at a fixed cycle" is to make polyester filaments wavy in a natural state, to improve the bulkiness and elasticity of polyester cotton. The glass transition temperature is about 81°C, heat and set between 160°C and 190°C, and the optimum sett...

Embodiment 2

[0059] The difference from Example 1 is that Example 2 adopts the polyester slit interlaced crimping process, which is passed Figure 4 The shown device makes polyester long fiber carry out "fixed cycle crimping", and this device comprises top plate 5 and some top plate vertical knives 7, bottom plate 6 and some bottom plate vertical knives 8, forms some slits between top plate vertical knives 7, and Some slits are also formed between the vertical knives 8 of the bottom plate, and the polyester filament 1 is arranged between the vertical knives 7 of the top plate and the vertical knives 8 of the bottom plate. The interlacing of the slits presses the polyester filaments 1, that is, several top vertical knives 7 are respectively inserted into the slits formed by the bottom vertical knives 8, so that the polyester filaments 1 are curled in a "fixed period", and the curled After the polyester filaments are heated and shaped, unwinding is to unweave the polyester filaments after th...

Embodiment 3

[0061] A preparation method of polyester cotton for cranial nerve microvascular decompression, comprising the following steps:

[0062] (a) crimping the polyester filaments at a fixed cycle, and heating and setting at 170°C, the setting time is 40s; specifically, the fineness of the polyester filaments is d=150D, and the number of filaments of the polyester filaments is f=144, i.e. 150D / 144f, "curling at a fixed cycle" is to make polyester filaments wavy in a natural state, to improve the bulkiness and elasticity of polyester cotton, in embodiment 3, polyester filaments are used The weaving process is crimped, the glass transition temperature of polyester filament is about 81°C, and it is heated and set at 170°C, so that the polyester filament can be set at this temperature after crimping.

[0063] (b) unwinding the crimped and heat-set polyester filaments; specifically, unwinding in embodiment 3 refers to unweaving the polyester filaments after weaving, and the polyester fila...

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Abstract

The invention aims to disclose a preparation method of polyester cotton for cranial nerve microvascular decompression, polyester cotton and application, and develops a preparation method of polyester cotton with an unspecific three-dimensional form, the preparation method comprises the following steps: curling polyester long fibers at a fixed period, and heating and shaping at 160-190 DEG C for 30-60 seconds; unrolling the crimped and heat-set polyester long fibers; carrying out filament separation treatment; the curled and heat-set polyester long fibers are cut, and the length of the cut polyester long fibers ranges from 1 cm to 10 cm; according to the process, terylene long fibers subjected to filament separation and cutting are subjected to clustering treatment to form terylene cotton, the terylene cotton of a cotton-fiber-shaped structure can be prepared through the clustering treatment in the mode that terylene is curled, shaped and then unwound, and the terylene cotton has the advantages of being high in fluffiness, flexibility and elasticity, can be shaped at will in the clinical process, and can be used for preparing the terylene cotton of a cotton-fiber-shaped structure. The shaped polyester cotton is placed between cranial nerves and microvessels, and isolation of the cranial nerves and the microvessels is achieved.

Description

technical field [0001] The invention relates to the technical field of cranial nerve microvascular decompression, in particular to a preparation method of polyester cotton for cranial nerve microvascular decompression, polyester cotton and its use. Background technique [0002] Cranial nerves are also called "cranial nerves". There are 12 pairs of cranial nerves in the human body, that is, 24. They are peripheral nerves, which are left and right pairs of nerves that emanate from the brain. The cranial nerves include the olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, auditory, glossopharyngeal, vagus, accessory, and hypoglossal nerves. [0003] When cranial nerves are compressed by blood vessels, people will experience trigeminal neuralgia, hemifacial spasm, glossopharyngeal neuralgia, masseter muscle spasm, blepharospasm, postural vertigo, Meniere's syndrome, etc., such as trigeminal neuralgia is a recurrent Paroxysmal episodes of severe neuralgia th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/00
CPCA61B17/00A61B2017/00831A61B2017/00778A61B2017/00526
Inventor 郎欢乐李世亭
Owner 上海水缘居生物科技有限公司